BL8576CS8TR

{
  "schema_version": 1,
  "type": "component",
  "slug": "bl8576cs8tr",
  "title": "BL8576CS8TR",
  "brief": "BL Shanghai Belling Battery Management, ESOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.",
  "version": "0.1.0",
  "license": "CC-BY-SA-4.0",
  "tags": [
    "component",
    "pmic",
    "bl8576cs8tr"
  ],
  "component": {
    "mpn": "BL8576CS8TR",
    "manufacturer": "BL Shanghai Belling",
    "package": "ESOP-8",
    "pin_count": 8,
    "category": "PMIC",
    "subcategory": "Battery Management",
    "datasheet": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2111151930_BL-Shanghai-Belling-BL8576CS8TR_C2919622.pdf",
    "parts": {
      "symbol": "bl8576cs8tr.kicad_sym",
      "footprint": "bl8576cs8tr.kicad_mod",
      "model_3d": "bl8576cs8tr-etched.glb",
      "model_3d_plain": "bl8576cs8tr.glb",
      "model_3d_step": "bl8576cs8tr-etched.step",
      "model_3d_step_plain": "bl8576cs8tr.step",
      "lbr": "bl8576cs8tr.lbr"
    },
    "distributor_links": {},
    "pins": [
      {
        "number": "1",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie to GND as appropriate for the PCB layout."
      },
      {
        "number": "2",
        "name": "PROG",
        "type": "bidirectional",
        "description": "Charge current program, monitor, and shutdown pin. Regulates to 1V in constant-current mode; charge current IBAT = (VPROG/RPROG)·1000, so a 1% resistor from PROG to GND sets IBAT (RPROG = 2k → ~500mA, 10k → ~100mA). Floating PROG raises it above the ~1.21V manual shutdown threshold via a 3μA pull-up, dropping ICC to ~25μA; internally clamped to ~2.4V (5mA absolute max)."
      },
      {
        "number": "3",
        "name": "GND",
        "type": "power_in",
        "description": "Device ground reference. Also the primary thermal path through the exposed pad / lead frame; use wide copper pours and vias to maximize allowed charge current."
      },
      {
        "number": "4",
        "name": "VCC",
        "type": "power_in",
        "description": "Positive input supply, 4.25V to 6.0V (absolute max 6V). Bypass with at least 1μF to GND. Charging is inhibited by UVLO (~2.9V rising, 200mV hysteresis) and by the VCC-VBAT comparator (charger enters shutdown when VCC drops to within ~80mV of VBAT)."
      },
      {
        "number": "5",
        "name": "BAT",
        "type": "power_out",
        "description": "Charge current output to the Li-ion cell. Regulates to a 4.2V ±1% float voltage set by an internal precision divider; sources up to 1A of charge current. Continuous short-circuit tolerant; recharge cycle restarts when VBAT falls ~100mV below VFLOAT."
      },
      {
        "number": "6",
        "name": "STDBY",
        "type": "output",
        "description": "Open-drain standby status output. Pulled low when the battery is fully charged (charge terminated); high-impedance otherwise. Requires an external pull-up to indicate the high state."
      },
      {
        "number": "7",
        "name": "~{CHRG}",
        "type": "output",
        "description": "Open-drain active-low charge status output. Pulled low (VOL ≤ 0.6V at 5mA) while a charge cycle is in progress; forced to high impedance when the BL8576 is in under-voltage lockout. Requires an external pull-up."
      },
      {
        "number": "8",
        "name": "NC",
        "type": "unconnected",
        "description": "No internal connection. Leave floating or tie to GND as appropriate for the PCB layout."
      }
    ],
    "provenance": {
      "extractor": "ds2sf",
      "datasheet": {
        "url": "https://wmsc.lcsc.com/wmsc/upload/file/pdf/v2/lcsc/2111151930_BL-Shanghai-Belling-BL8576CS8TR_C2919622.pdf",
        "pages": 10,
        "sha256": "ca045d756481b601",
        "source_tier": "lcsc"
      },
      "cad": "KiCad official (CC-BY-SA 4.0)",
      "pins": {
        "total": 8,
        "described": 8,
        "cites_pages": true,
        "refuses_to_fabricate": true
      }
    },
    "viewers": {
      "symbol": "viewers/symbol.html",
      "footprint": "viewers/footprint.html"
    },
    "models_3d": [
      {
        "file": "bl8576cs8tr.step",
        "role": "plain",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "2d6f7e774e8143e3320cbd59eb5be9f3b7864614644e3b072006e1eb05fb7fa6",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      },
      {
        "file": "bl8576cs8tr-etched.step",
        "role": "eda",
        "up": "Z",
        "units": "mm",
        "origin": "footprint origin = pad-pattern centre",
        "seat": "z = 0",
        "extents_mm": [
          6.0,
          4.9,
          1.55
        ],
        "zmin_mm": -0.0,
        "centre_offset_mm": 0.0,
        "footprint_binding": "identity",
        "sha256": "5343727139b2e2aa3a7434e8696c9357cd171f3f775634fd252bef5b0da38765",
        "checked": "2026-10-07",
        "checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
      }
    ]
  },
  "metadata": {
    "specs": {
      "Manufacturer": "BL Shanghai Belling",
      "Package": "ESOP-8",
      "Category": "PMIC",
      "Pins": "8"
    }
  },
  "variants": [
    {
      "mpn": "BL8576CS8TR",
      "kind": "packaging"
    }
  ],
  "sections": [
    "hero",
    "viewers",
    "readme",
    "breadcrumbs",
    "info"
  ],
  "discovery_triggers": [
    "bl8576cs8tr"
  ],
  "discovery_pitch": "BL8576CS8TR (BL Shanghai Belling) component page with datasheet-verified CAD.",
  "author": {
    "name": "Ray",
    "email": "[email protected]"
  },
  "dependencies": {},
  "hero": {
    "type": "image",
    "path": "docs/hero.png"
  },
  "files": [
    "page.json",
    "README.md",
    "bl8576cs8tr.kicad_sym",
    "bl8576cs8tr.kicad_mod",
    "bl8576cs8tr.glb",
    "bl8576cs8tr.step",
    "bl8576cs8tr.lbr",
    "docs/hero.png",
    "docs/bl8576cs8tr-datasheet.pdf",
    "viewers/symbol.html",
    "viewers/footprint.html"
  ],
  "visibility": {
    "public": true
  },
  "updated_at": "2026-09-24T17:56:48.411Z"
}